EVSE works normally at lower ambient temperatures but fails to start or quickly faults on very cold days.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety first: Do not attempt to heat the EVSE with open flames or unapproved heaters. Turn OFF the breaker before opening the unit.
- Observe pattern: Note the temperature range where failures occur and whether the EVSE recovers when warmed.
- Inspect board (power OFF): Look for aged capacitors and brittle plastics that may be affected by cold.
- Check contactor movement: In a warmer environment (power OFF), verify that the contactor armature moves freely.
If cold-related failures worsen over time, preemptively replace the control board and/or contactor to restore reliable operation across the specified temperature range.
Repair Difficulty
Required Part
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